CVE-2016-3298
Actively exploited. CVE-2016-3298 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
An information disclosure vulnerability exists when the Microsoft Internet Messaging API improperly handles objects in memory. An attacker who successfully exploited this vulnerability could allow the attacker to test for the presence of files on disk.
CSIRTS triage
- What
- An information disclosure vulnerability exists when the Microsoft Internet Messaging API improperly handles objects in memory.
- Who is affected
- Deployments of Microsoft Internet Messaging API are affected.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Apply the latest security patch for Internet Messaging API.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2016-3298: Microsoft Internet Explorer Messaging API Information Disclosure Vulnerabilitycisa-kev · 2022-05-24
External references
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